Home / 13,659.58-18,848.66-7,691.10

Finding the Fourth Proportional to 13,659.58, 18,848.66 and 7,691.10

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Solution

The fourth proportional to 13,659.58, 18,848.66 and 7,691.10 is: 10,612.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.58 : 18,848.66 = 7,691.10 : x
  2. Step 2: Convert to fraction form
    13,659.58/18,848.66 = 7,691.10/x
  3. Step 3: Cross multiply
    13,659.58x = 18,848.66 × 7,691.10
  4. Step 4: Simplify right side
    13,659.58x = 144,966,928.93
  5. Step 5: Solve for x
    x = 144,966,928.93/13,659.58
  6. Step 6: Final answer
    x = 10,612.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.